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      1 /*
      2  * Copyright (C) 2015 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.tv.common.ui.setup;
     18 
     19 import android.os.Bundle;
     20 import android.support.annotation.Nullable;
     21 import android.util.Log;
     22 import android.view.LayoutInflater;
     23 import android.view.View;
     24 import android.view.ViewGroup;
     25 import android.view.ViewGroup.MarginLayoutParams;
     26 import com.android.tv.common.R;
     27 
     28 /** A fragment for channel source info/setup. */
     29 public abstract class SetupMultiPaneFragment extends SetupFragment {
     30     private static final String TAG = "SetupMultiPaneFragment";
     31     private static final boolean DEBUG = false;
     32 
     33     public static final int ACTION_DONE = Integer.MAX_VALUE;
     34     public static final int ACTION_SKIP = ACTION_DONE - 1;
     35     public static final int MAX_SUBCLASSES_ID = ACTION_SKIP - 1;
     36 
     37     public static final String CONTENT_FRAGMENT_TAG = "content_fragment";
     38 
     39     @Override
     40     public View onCreateView(
     41             LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
     42         if (DEBUG) {
     43             Log.d(
     44                     TAG,
     45                     "onCreateView("
     46                             + inflater
     47                             + ", "
     48                             + container
     49                             + ", "
     50                             + savedInstanceState
     51                             + ")");
     52         }
     53         View view = super.onCreateView(inflater, container, savedInstanceState);
     54         if (savedInstanceState == null) {
     55             SetupGuidedStepFragment contentFragment = onCreateContentFragment();
     56             getChildFragmentManager()
     57                     .beginTransaction()
     58                     .replace(
     59                             R.id.guided_step_fragment_container,
     60                             contentFragment,
     61                             CONTENT_FRAGMENT_TAG)
     62                     .commit();
     63         }
     64         if (needsDoneButton()) {
     65             setOnClickAction(view.findViewById(R.id.button_done), getActionCategory(), ACTION_DONE);
     66         }
     67         if (needsSkipButton()) {
     68             view.findViewById(R.id.button_skip).setVisibility(View.VISIBLE);
     69             setOnClickAction(view.findViewById(R.id.button_skip), getActionCategory(), ACTION_SKIP);
     70         }
     71         if (!needsDoneButton() && !needsSkipButton()) {
     72             View doneButtonContainer = view.findViewById(R.id.done_button_container);
     73             // Use content view to check layout direction while view is being created.
     74             if (getResources().getConfiguration().getLayoutDirection()
     75                     == View.LAYOUT_DIRECTION_LTR) {
     76                 ((MarginLayoutParams) doneButtonContainer.getLayoutParams()).rightMargin =
     77                         -getResources()
     78                                 .getDimensionPixelOffset(R.dimen.setup_done_button_container_width);
     79             } else {
     80                 ((MarginLayoutParams) doneButtonContainer.getLayoutParams()).leftMargin =
     81                         -getResources()
     82                                 .getDimensionPixelOffset(R.dimen.setup_done_button_container_width);
     83             }
     84             view.findViewById(R.id.button_done).setFocusable(false);
     85         }
     86         return view;
     87     }
     88 
     89     @Override
     90     protected int getLayoutResourceId() {
     91         return R.layout.fragment_setup_multi_pane;
     92     }
     93 
     94     protected abstract SetupGuidedStepFragment onCreateContentFragment();
     95 
     96     @Nullable
     97     protected SetupGuidedStepFragment getContentFragment() {
     98         return (SetupGuidedStepFragment)
     99                 getChildFragmentManager().findFragmentByTag(CONTENT_FRAGMENT_TAG);
    100     }
    101 
    102     protected abstract String getActionCategory();
    103 
    104     protected boolean needsDoneButton() {
    105         return true;
    106     }
    107 
    108     protected boolean needsSkipButton() {
    109         return false;
    110     }
    111 
    112     @Override
    113     protected int[] getParentIdsForDelay() {
    114         return new int[] {
    115             android.support.v17.leanback.R.id.content_fragment,
    116             android.support.v17.leanback.R.id.guidedactions_list
    117         };
    118     }
    119 
    120     @Override
    121     public int[] getSharedElementIds() {
    122         return new int[] {
    123             android.support.v17.leanback.R.id.action_fragment_background, R.id.done_button_container
    124         };
    125     }
    126 }
    127